Ensure unique element ids on zen page

trans/views/edit.py

@@ -696,7 +696,11 @@ def get_zen_unitdata(translation, request):
     )
 
     unitdata = [
-        (unit, TranslationForm(translation, unit=unit))
+        (unit, TranslationForm(
+            translation,
+            unit,
+            auto_id='id_{0}_%s'.format(unit.checksum)
+        ))
         for unit in units
     ]
 

weblate/html/zen-units.html

@@ -24,7 +24,7 @@
 {{ unit.1.checksum }}
 {{ unit.1.target }}
 <br />
-{{ unit.1.fuzzy }}<label for="id_fuzzy">{% trans "Fuzzy" context "Message is fuzzy" %}</label>
+{{ unit.1.fuzzy }}<label for="id_{{ unit.0.checksum }}_fuzzy">{% trans "Fuzzy" context "Message is fuzzy" %}</label>
 </form>
 </td>
 </tr>